The Medium-term Effects of Home-based Early Childhood Development Intervention Impact Evaluation 2010, Baseline Survey
The Medium Term Effects of Home-based Early Childhood Development Intervention Impact Evaluation (ECDIIE) covered 96 small towns in central Colombia, representing a large number of small communities across a relatively big geographical area. It exploited structures in place from the government’s Conditional Cash Transfer Programme, Familias en Accion (FeA), which targets the poorest 20% of households in the country.
There are currently three waves of data, a baseline, pre-intervention wave collected between February and June 2010, and a follow-up wave 18 months later between September and December 2011, at the end of the intervention period. The second wave of follow-up data collection occurred 2 years after the first follow-up data collection between September and December 2013.
The beneficiaries of FeA periodically elect a female representative, called the Madre Lider (ML). We randomly selected three from each town (municipality), and then from the families represented by the ML we randomly selected 5 children aged 12 to 24 months to be eligible for the intervention. Within each municipality, eligible households were randomly allocated (at the municipality level) to each of the following treatment arms:
2. Stimulation + Supplementation
The stimulation intervention consisted of weekly visits to the homes of the target children, each visit lasting around one hour. The home visitors received a three week training programme in activities designed to stimulate children at different ages. They also received a weekly curriculum as a guide, and a set of locally produced materials (homemade toys from recycling material, picture books, puzzles, etc.).
The supplementation arm consisted of providing daily sachets of multiple micronutrient powder to mothers, via the home visitors, to add to the target child's food. Sachets were designed to provide iron (12.5mg), zinc (5mg), Vitamin A (300 µg retinol equivalent), Vitamin C (30mg) and folic acid (160 µg) for the children targeted.
Kind of Data
Sample survey data [ssd]
The scope of the study includes: Housing and Home, Location and identification, Housing Characteristics, Distances, Property and Ownership of Property, Home savings and debts, Expenses, Other revenues and transfers, Incidents in the past 12 months, Participation in Familias en Accion, Household structure, Food consumption of children in the household (for children between 6 months and 6 years), Education, Health, Work, Institutional and non-institutional care, Nutritional status - growth and development, Home characteristics, Morbidity, Historical care arrangements, Interaction with biological parents, Time use, Empowerment, Family information, Contraception and reproductive history, Risk aversion, Inequality aversion, Knowledge of child development, Depression, Birth and breastfeeding of biological children, Anthropometrics (height, weight etc.) and haemoglobin.
Producers and sponsors
Economic and Social Sciences Research Council
Inter-American Development Bank
World Bank Group
International Growth Centre
The survey used a randomized experimental design to obtain rigorous and unbiased estimates of the impact of the stimulation and nutrition interventions, and of their interaction.
Dates of Data Collection
Data Collection Mode
Data Collection Notes
The main components of the intervention were:
1. The development of the curriculum.
2. The training of professionals that could train the home visitors in the field.
3. The supervision of the home visitors throughout the intervention (partially funded by IGC).
Six professionals were chosen among a number of applicants on the basis of their CV and an interview. They were trained in child development, home visiting and the curriculum for over one and a half months. The training also included practicing home visits in Soacha. These professionals, who will be referred to as "mentors" in what follows, then had the task to train the home visitors in the field - i.e. teach them the curriculum and the approach to home visiting - and mentor/supervise them throughout the intervention. To this end, each of them was assigned 8 towns, for a total of 24 home visitors each.
The training of the home visitors was split across two workshops. The first, lasting two weeks, covered the first part of the stimulation curriculum (activities for children ages 12 to 30 months) along with the fundaments of child development, the importance of adequate care and stimulation, and toy construction workshops. Once this first round of training was completed, the home visitors were deemed ready to start the visits. This process took place at the same time as data collection (being careful in each village to ensure data collection had taken place before the intervention started), from February through June 2010, so by the end of June 2010 the intervention was fully phased-in across all treatment villages. The second phase of the training workshops took place between mid August and mid October 2010 over a one week period. In these sessions, the home visitor and the mentor covered the second half of the curriculum (activities for children aged 30 to 42 months), revised lessons covered in the first workshop, resolved doubts, and discussed any outstanding issues.
Use of the dataset must be acknowledged using a citation which would include:
- the Identification of the Primary Investigator
- the title of the survey (including country, acronym and year of implementation)
- the survey reference number
- the source and date of download.
Orazio Attanasio, UCL. Colombia Medium-term Effects of Home-based Early Childhood Development Intervention Impact Evaluation (MICS) 2010, Baseline Survey, Ref. COL_2010_ECDIIE-BL_v01_M. Dataset downloaded from [url] on [date].
Disclaimer and copyrights
The user of the data acknowledges that the original collector of the data, the authorized distributor of the data, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.
DDI Document ID
Development Data Group
The World Bank
Documentation of the DDI
Date of Metadata Production
DDI Document version
Version 01 (January 2019)